def format_time(timestamp, utc_offset=0, timezone_name=''):
minutes = timestamp.time().minute
minutes = 15 * int(minutes / 15)
local_timezone = SimpleTimeZone(hours=utc_offset)
newtime = timestamp.replace(minute=minutes).astimezone(local_timezone)
timestring = Timestamp.to_string(newtime, format_string='%Y-%m-%d %H:%M', include_tz=False)
return timestring
def my_format_time(timestamp):
minutes = timestamp.time().minute
minutes = 15 * int(minutes / 15)
local_timezone = SimpleTimeZone(hours=utc_offset)
newtime = timestamp.replace(minute=minutes).astimezone(local_timezone)
timestring = Timestamp.to_string(newtime, format_string='%Y-%m-%d\n%H:%M {}'.format(
timezone_label), include_tz=False)
return timestring
def format_time(timestamp, utc_offset=0, timezone_name=''):
minutes = timestamp.time().minute
minutes = 15 * int(minutes / 15)
local_timezone = SimpleTimeZone(hours=utc_offset)
newtime = timestamp.replace(minute=minutes).astimezone(local_timezone)
timestring = Timestamp.to_string(newtime,
format_string='%Y-%m-%d %H:%M',
include_tz=False)
return timestring
def write_trajectory(trajectory, outfile):
writer = csv.writer(outfile, delimiter=',')
writer.writerow([ '# object_id', 'timestamp', 'longitude', 'latitude', 'altitude' ])
for point in trajectory:
latest_row = [ point.object_id,
Timestamp.to_string(point.timestamp, include_dst=False),
str(point.longitude),
str(point.latitude),
str(int(point.altitude)) ]
writer.writerow(latest_row)
def my_format_time(timestamp):
minutes = timestamp.time().minute
minutes = 15 * int(minutes / 15)
local_timezone = SimpleTimeZone(hours=utc_offset)
newtime = timestamp.replace(minute=minutes).astimezone(local_timezone)
timestring = Timestamp.to_string(
newtime,
format_string='%Y-%m-%d\n%H:%M {}'.format(timezone_label),
include_tz=False)
return timestring
def dictionary_from_trajectory(trajectory):
"""Returns a dictionary constructed from the given trajectory
Args:
trajectory: the trajectory to convert into a dictonary representation
"""
dictionary = {}
dictionary['domain'] = trajectory.DOMAIN
dictionary['object_id'] = trajectory[0].object_id
# set trajectory properties
dictionary['trajectory_properties'] = {}
for (name, value) in trajectory.properties.items():
if isinstance(value, datetime.datetime):
dictionary['trajectory_properties'].update({name: {'type': type(value).__name__, 'value': Timestamp.to_string(value, include_tz=False)}})
else:
dictionary['trajectory_properties'].update({name: {'type': type(value).__name__, 'value': value}})
# initialize timestamps and coordinates
dictionary['timestamps'] = []
dictionary['coordinates'] = []
# initialize point properties
dictionary['point_properties'] = {}
for (name, value) in trajectory[0].properties.items():
dictionary['point_properties'].update({name: {'type': type(value).__name__, 'values': []}})
# set timestamps, coordinates and point_properties
for i in range(len(trajectory)):
dictionary['timestamps'].append(Timestamp.to_string(trajectory[i].timestamp,
include_tz=False))
dictionary['coordinates'].append(tuple(trajectory[i]))
for (name, value) in trajectory[i].properties.items():
if isinstance(value, datetime.datetime):
dictionary['point_properties'][name]['values'].append(Timestamp.to_string(value, include_tz=False))
else:
dictionary['point_properties'][name]['values'].append(value)
return dictionary
def format_time2(timestamp):
hours = timestamp.time().hour
minutes = timestamp.time().minute
if minutes < 30:
minutes = 0
else:
minutes = 30
new_timestamp = datetime.datetime(year=my_timestamp.date().year,
month=my_timestamp.date().month,
day=my_timestamp.date().day,
hour=hours,
minute=minutes,
second=0,
tzinfo=timestamp.tzinfo)
new_timestamp = new_timestamp.astimezone(pytz.timezone('US/Pacific'))
print("format_time2: new timestamp is {}".format(str(new_timestamp)))
return Timestamp.to_string(new_timestamp, format_string='%H:%M', include_tz=False)
def format_time2(timestamp):
hours = timestamp.time().hour
minutes = timestamp.time().minute
if minutes < 30:
minutes = 0
else:
minutes = 30
new_timestamp = datetime.datetime(year=my_timestamp.date().year,
month=my_timestamp.date().month,
day=my_timestamp.date().day,
hour=hours,
minute=minutes,
second=0,
tzinfo=timestamp.tzinfo)
new_timestamp = new_timestamp.astimezone(pytz.timezone('US/Pacific'))
print("format_time2: new timestamp is {}".format(str(new_timestamp)))
return Timestamp.to_string(new_timestamp,
format_string='%H:%M',
include_tz=False)
def format_time1(timestamp):
return Timestamp.to_string(timestamp)
def format_time1(timestamp):
return Timestamp.to_string(timestamp)
def dictionary_from_trajectory(trajectory):
"""Returns a dictionary constructed from the given trajectory
Args:
trajectory: the trajectory to convert into a dictonary representation
"""
dictionary = {}
dictionary['domain'] = trajectory.DOMAIN
dictionary['object_id'] = trajectory[0].object_id
# set trajectory properties
dictionary['trajectory_properties'] = {}
for (name, value) in trajectory.properties.items():
if isinstance(value, datetime.datetime):
dictionary['trajectory_properties'].update({
name: {
'type': type(value).__name__,
'value': Timestamp.to_string(value, include_tz=False)
}
})
else:
# Python 2 has both 'int' and 'long' data types. The
# first is your system's ordinary integer; the second is
# arbitrary-precision. In Python 3, all integers are of
# type 'int' and are of arbitrary precision.
if sys.version_info[0] == 2 and type(value) is long:
type_name = 'int'
else:
type_name = type(value).__name__
dictionary['trajectory_properties'].update(
{name: {
'type': type_name,
'value': value
}})
# initialize timestamps and coordinates
dictionary['timestamps'] = []
dictionary['coordinates'] = []
# initialize point properties
dictionary['point_properties'] = {}
for (name, value) in trajectory[0].properties.items():
# As above -- Python 2 has a 'long' data type that we will
# call 'int'.
if sys.version_info[0] == 2 and type(value) is long:
type_name = 'int'
else:
type_name = type(value).__name__
dictionary['point_properties'].update(
{name: {
'type': type_name,
'values': []
}})
# set timestamps, coordinates and point_properties
for i in range(len(trajectory)):
dictionary['timestamps'].append(
Timestamp.to_string(trajectory[i].timestamp, include_tz=False))
dictionary['coordinates'].append(tuple(trajectory[i]))
for (name, value) in trajectory[i].properties.items():
if isinstance(value, datetime.datetime):
dictionary['point_properties'][name]['values'].append(
Timestamp.to_string(value, include_tz=False))
else:
dictionary['point_properties'][name]['values'].append(value)
return dictionary
